Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (09): 31-38.doi: 10.13475/j.fzxb.20200806008

• Invited Column:Intelligent fiber and products • Previous Articles     Next Articles

Research progress in wearable plantar pressure monitoring system

CHEN Zujiao1, ZHANG Rui1, ZHUO Wenwen1, ZHANG Longlin1,2, ZHOU Li1,2()   

  1. 1. College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
    2. Chongqing Engineering Technology Research Center of Biomass Fiber and Modern Textile, Chongqing 400715, China
  • Received:2020-08-12 Revised:2021-05-30 Online:2021-09-15 Published:2021-09-27
  • Contact: ZHOU Li E-mail:mydtcazz@126.com

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Abstract:

Aiming at the promotion of wearable plantar pressure monitoring techniques, physiological structure of human foot, source of plantar pressure and walking frequency were introduced. According to the current research status of wearable plantar pressure monitoring systems, materials and working principles of integrative pressure monitoring socks based on fabric sensor were reviewed, and information transfer module and working principles of composite pressure monitoring shoes based on flexible electronic sensor were also scrutinized. The selection principle of feature points used in wearable plantar pressure monitoring systems and its use for detecting falls, foot disease diagnosis and plantar pressure database establishment were described. The problems were pointed out in poor material performance and short wireless transmission distance in the industrialization process, based on which an application proposal with improved performance based on biomechanics, textile materials and electronic communication was put forward for future development.

Key words: wearable, plantar pressure, pressure monitoring, flexible pressure sensor

CLC Number: 

  • TS943.3

Fig.1

Skeletal structure of human feet"

Fig.2

Analysis diagram of human foot of force from different motion state. (a) Standing; (b) Walking; (c)Running"

Fig.3

Equivalent circuit diagram of knitted fabric unit coil"

Fig.4

Schematic illustration of woven fabric pressure sensor. (a) Fabric pressure sensor; (b) Principle of pressure sensing"

Fig.5

Pressure monitoring socks and pressure data. (a) Schematic diagram of pressure monitoring socks; (b) Plantar pressure data"

Fig.6

Structure diagram (a) and working principle diagram (b) of pressure monitoring shoes"

Fig.7

Schematic diagram of three flexible pressure sensors. (a) Piezoresistive flexible sensor; (b) Capacitive flexible sensor; (c) Piezoelectric flexible sensor"

Fig.8

Selection method and superposition processing of feature position. (a) Inverted pendulum model; (b) Superposition processing diagrams of feature position"

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